Tag Archives: electricity

Meet the power plant of the future: Solar + battery hybrids are poised for explosive growth

By pairing solar power and battery storage, hybrids can keep providing electricity after dark.

Joachim Seel, Lawrence Berkeley National Laboratory; Bentham Paulos, Lawrence Berkeley National Laboratory, and Will Gorman, Lawrence Berkeley National Laboratory

America’s electric power system is undergoing radical change as it transitions from fossil fuels to renewable energy. While the first decade of the 2000s saw huge growth in natural gas generation, and the 2010s were the decade of wind and solar, early signs suggest the innovation of the 2020s may be a boom in “hybrid” power plants.

A typical hybrid power plant combines electricity generation with battery storage at the same location. That often means a solar or wind farm paired with large-scale batteries. Working together, solar panels and battery storage can generate renewable power when solar energy is at its peak during the day and then release it as needed after the sun goes down.

A look at the power and storage projects in the development pipeline offers a glimpse of hybrid power’s future.

Our team at Lawrence Berkeley National Laboratory found that a staggering 1,400 gigawatts of proposed generation and storage projects have applied to connect to the grid – more than all existing U.S. power plants combined. The largest group is now solar projects, and over a third of those projects involve hybrid solar plus battery storage.

While these power plants of the future offer many benefits, they also raise questions about how the electric grid should best be operated.

Why hybrids are hot

As wind and solar grow, they are starting to have big impacts on the grid.

Solar power already exceeds 25% of annual power generation in California and is spreading rapidly in other states such as Texas, Florida and Georgia. The “wind belt” states, from the Dakotas to Texas, have seen massive deployment of wind turbines, with Iowa now getting a majority of its power from the wind.

This high percentage of renewable power raises a question: How do we integrate renewable sources that produce large but varying amounts of power throughout the day?

Joshua Rhodes/University of Texas at Austin.

That’s where storage comes in. Lithium-ion battery prices have rapidly fallen as production has scaled up for the electric vehicle market in recent years. While there are concerns about future supply chain challenges, battery design is also likely to evolve.

The combination of solar and batteries allows hybrid plant operators to provide power through the most valuable hours when demand is strongest, such as summer afternoons and evenings when air conditioners are running on high. Batteries also help smooth out production from wind and solar power, store excess power that would otherwise be curtailed, and reduce congestion on the grid.

Hybrids dominate the project pipeline

At the end of 2020, there were 73 solar and 16 wind hybrid projects operating in the U.S., amounting to 2.5 gigawatts of generation and 0.45 gigawatts of storage.

Today, solar and hybrids dominate the development pipeline. By the end of 2021, more than 675 gigawatts of proposed solar plants had applied for grid connection approval, with over a third of them paired with storage. Another 247 gigawatts of wind farms were in line, with 19 gigawatts, or about 8% of those, as hybrids.

The amount of proposed solar, storage and wind power waiting to hook up to the grid has grown dramatically in recent years, while coal, gas and nuclear have faded. Lawrence Berkeley National Laboratory

Of course, applying for a connection is only one step in developing a power plant. A developer also needs land and community agreements, a sales contract, financing and permits. Only about one in four new plants proposed between 2010 and 2016 made it to commercial operation. But the depth of interest in hybrid plants portends strong growth.

In markets like California, batteries are essentially obligatory for new solar developers. Since solar often accounts for the majority of power in the daytime market, building more adds little value. Currently 95% of all proposed large-scale solar capacity in the California queue comes with batteries.

5 lessons on hybrids and questions for the future

The opportunity for growth in renewable hybrids is clearly large, but it raises some questions that our group at Berkeley Lab has been investigating.

Here are some of our top findings:

  • The investment pays off in many regions. We found that while adding batteries to a solar power plant increases the price, it also increases the value of the power. Putting generation and storage in the same location can capture benefits from tax credits, construction cost savings and operational flexibility. Looking at the revenue potential over recent years, and with the help of federal tax credits, the added value appears to justify the higher price.
  • Co-location also means tradeoffs. Wind and solar perform best where the wind and solar resources are strongest, but batteries provide the most value where they can deliver the greatest grid benefits, like relieving congestion. That means there are trade-offs when determining the best location with the highest value. Federal tax credits that can be earned only when batteries are co-located with solar may be encouraging suboptimal decisions in some cases.
  • There is no one best combination. The value of a hybrid plant is determined in part by the configuration of the equipment. For example, the size of the battery relative to a solar generator can determine how late into the evening the plant can deliver power. But the value of nighttime power depends on local market conditions, which change throughout the year.
  • Power market rules need to evolve. Hybrids can participate in the power market as a single unit or as separate entities, with the solar and storage bidding independently. Hybrids can also be either sellers or buyers of power, or both. That can get complicated. Market participation rules for hybrids are still evolving, leaving plant operators to experiment with how they sell their services.
  • Small hybrids create new opportunities: Hybrid power plants can also be small, such as solar and batteries in a home or business. Such hybrids have become standard in Hawaii as solar power saturates the grid. In California, customers who are subject to power shutoffs to prevent wildfires are increasingly adding storage to their solar systems. These “behind-the-meter” hybrids raise questions about how they should be valued, and how they can contribute to grid operations.

Hybrids are just beginning, but a lot more are on the way. More research is needed on the technologies, market designs and regulations to ensure the grid and grid pricing evolve with them.

While questions remain, it’s clear that hybrids are redefining power plants. And they may remake the U.S. power system in the process.

Joachim Seel, Senior Scientific Engineering Associate, Lawrence Berkeley National Laboratory; Bentham Paulos, Affiliate, Electricity Markets & Policy Group, Lawrence Berkeley National Laboratory, and Will Gorman, Graduate Student Researcher in Electricity Markets and Policy, Lawrence Berkeley National Laboratory

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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The World Must Transition to 200% Renewable Energy Sources: no, that’s not a misprint

net-zero by 2050 was a joke, but nobody’s laughing

Attitude matters. Imagine that in the run-up to the 20xx Olympics your country declared: we will strive to not-lose and achieve net-zero gold medals!

OK maybe not the best metaphor but still – why aim to not trigger armageddon by… 2050?

  • It is international scientific consensus that, in order to prevent the worst climate damages, global net human-caused emissions of carbon dioxide (CO2) need to fall by about 45 percent from 2010 levels by 2030, reaching net zero around 2050. –

Once that lofty non-goal was agreed upon by governments across the globe, it quickly became apparent that virtually none of them were doing anywhere near what it would take to get to said uninspired non-goal.

The idea was (and still is) to drag and under-achieve as long as politically possible and then suddenly, in the final stretch, accelerate efforts (with resources controlled by future politicians) and reach net-zero. And then declare victory.

People want more than net-zero. People need more than net-zero. At the very least there has to be a better name, and a serious plan to make it actually happen.

You are going to hear a lot about minus-zero carbon soon. The reason is a good one. When the stakes are as high as the extinction of all life on earth, just getting to a tie score is not a good plan. So those who are in the trenches, working on solutions for global warming and reducing the carbon footprint, are search also for better ways to communicate what the goal is and what it means.

This, hopefully, can lead to a focus on a goal, or at least the articulation of a desire, that can inspire people to become highly active, even agitated, perhaps even alarmed, and begin the hard work and striving that it will take to get to a net-positive outcome for all of us.

And, who exactly decided that it would be a good idea to prolong the carbon carnival as long as possible in the first place? Carbon emitters and oil profiteers perhaps?

60 years of feet dragging, obfuscation and deliberate blocking of any solutions threatening the status quo have already come and gone.

Also, if energy is clean and abundant, why not use more? Energy is good, more energy use, if clean and sustainable, could be better. It can give us amazing things. Efficient use is good too, of course, but this is a mind-set issue. This is thought error or a thought liberation.

Minus-zero carbon x 100% (with 200% energy availability) is a much better goal and represents a thought liberating idea.

Perfection can’t be the enemy of good in the energy arena

Do we need architects and inventors, innovators and scientists, and massive amount of ammunition in the form of trillions of dollars in funding, from both public and private sources? Hell yes.

And must these magicians and Mavericks do amazing things that were believed impossible just a short while ago? Absolutely. Is this a ‘moon-shot’ to, not just save, but catapult humanity into a better future? You bet-ur-a%$ it is.

That means that the challenges of finding better tech, examples such as for soil regeneration, or more efficient battery storage, or for alternatives to rare earth metals, if they are too, um, rare need to be figured out and set into motion, fast. It means inventing and discovering tech that does not exist, that has not been tried or even sought after, why never sought? Because oil was cheap and available, so don’t stress it, Bub.

watch video

And, there are those out there, already today, that are thinking beyond net-zero in 2050. There are those that want more, that know that we need more. Those that understand that political inertia and corrupt vested interests are not the excuses we want written on our tombstones.

And why not look for half-full glasses or beliefs manifested into action? Why not aim for something that makes us want to get up, stand up, and make something possible that looks like hope and feels like success and winning?

Decentralized solutions are coming, in every part of life

The reality is that it is not only the world’s energy infrastructure that needs a total makeover. Financial inequality, political and economic systems are fragile and failing, regardless where.

There is a whiff of collapse that could turn into a whirlwind and then could derail any progress made, as we plunge into dark ages, even before factoring in the catastrophic climate challenges.

We need new, innovative ways to learn, to communicate, interact and collaborate. And these are emerging – if you don’t believe in crypto, web3 or any other new directions that many are seeing as alternatives to broken systems of the past, you at least have to acknowledge that actively looking for a better way, one that does represent a solution, is what is needed even as the current systems are failing us.

So if you don’t agree with the ideas for change and proposed ways to improve methods for human interaction and coexistence, come up with new ideas and put them forth, ok?, maybe we have to try and strive and stumble until a truly better way presents itself.

Give yourself and all you have into actions that will finally change the direction from one that spells doom, in this case continuing to burn carbon in insanely massive amounts while we fight, disagree and kill one another (war, etc.), to something new, something that at least could have a chance to win the peace.

Losing is unacceptable for-real this time. Winning isn’t everything, no sir, it’s the only thing. And starting on 04-22-2022 this net-zero BS needs to be sent to Mars, or perhaps Uranus.

Meanwhile here on earth we gotta get busy building the only thing that will prevent oblivion: a tiny taste of utopia that will grow from a seed into a raging forest of real, not fossilized, success.

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The Real Dream of Clean Energy: Video Eureka Moment from Cleo Abram

Reducing fossil fuel use is important, but it’s more important to increase zero carbon energy production

Increasing sustainable energy production is possibly the most important goal for the world today. This idea is mostly couched, however, in negative terms, the idea that without a shift to clean, green sustainable sources climate change will destroy the future.

This is an important and essentially true statement.

However the automatic association of sustainable energy as being inevitably connected to less energy availability is a false premise. One that can be proven wrong with positive action towards building clean energy infrastructure, not as a defensive, desperate survival goal, but as a natural expansion of more energy and power that could lead to increased prosperity for the human race.

Deeply embedded thought patterns prevent us, perhaps, from imagining a world where more energy is not associated with more pollution, eventual depletion of a finite and limited resource and ultimately death, destruction and a CO2 induced climate catastrophe.

Optimism and abundance are linked with hope and a dream of a better standard of living for all. That dream is possible not with less energy use, but rather, more and cheaper energy availability that can be created by building a global, sustainable, renewable energy infrastructure.

A change in thought and perspective is necessary and could be more powerful than the sun

Utopia is a word that will get you laughed at, while oblivion is becoming the expected outcome of our century. Predicted by R. Buckminster Fuller in his book ‘Utopia or Oblivion‘, the choice we face in this century is not oblivion and catastrophic suffering or ‘business as usual’, it is not survival vs extinction, it is survival by unleashing utopian potential or total annihilation.

The paradox of sustainable energy is that, without it becoming the primary energy production system for the planet, combined with reduced consumption of fossil fuels until 100% sustainability is reached, oblivion or at least massive pain is assured; while at the same time, achieving 100% carbon free, clean energy from sustainable sources like solar, wind and geothermal, can create virtually unlimited increases in beneficial uses of energy, leading to an almost utopian potential for quality of life.

Thinking is the Difference Between Utopia or Oblivion

The clarity of realizing that clean sustainable energy ubiquity means unlimited energy consumption is non-destructive, and can end the malthusian nightmare of finite resources, that so many have fought over and even died for, is truly mind altering.

More is less, is another way to say it. Or at least more consumption and benefits, but none of the negative costs to the environment that we have come to see as inextricably linked to fossil fuel energy production and use.

At the same time it also harkens back to Elon Musk and Tesla’s mission statement. Tesla has had a vision for sustainable energy that is S3XY; more luxury, more beauty, more fun.

That mind-set, a mind set of abundant clean unlimited energy from sustainable sources, used to power beautiful powerful EVs, has made the company the enormous success that it is and ushered in an era EV production as job #1 throughout the entire auto industry.

The genius of this perspective centers on the idea that humans, when striving toward a positive goal, are always more powerful and successful than they are when simply trying to avoid a negative outcome.

Interestingly, the dream of reaching Mars, Musk’s other stated goal, is both positive and negative, since one reason for the urgent need to establish colonies there could be the destruction of earth due to climate disaster, caused by a failure to create a sustainable clean energy infrastructure in time.

It is the power and dream of much more abundant energy that can remove the idea from our minds that energy consumption is inherently bad, just because it does have negative ramifications galore when the source for that energy is dirty fossil fuels.

The Utopian Mindset must begin to permeate our consciousness if we are to overcome the challenges of 2000-2050 and beyond

Energy abundance is not the only type of abundance that our minds must learn to accept as possible for our species if we hope to turn things around. Bitcoin, for example, is currently being scapegoated in the media generally and is having endless disinformation hurled at its proof of work mining system based on the premise that it uses “too much” energy and too much of that energy is sourced from fossil fuels at this time.

But why not focus on the real problem? Why not see that a monumental and heroic effort to rid the world of dependence on “bad” and ultimately finite and limited sources of energy from fossil fuels and shift, ultimately, 100% of production to clean and renewable sources, needs to be job #1 for team earth?

Again, in an all-or-nothing scenario there is no option to equivocate. The negative reasons that fossil fuels must be phased out as soon as possible (‘the stick’ as per Cleo Abram in her video below) become more inevitable each minute and are already threatening everything humans have accomplished to date.

The positive motivation is less obvious for most at this point (‘the carrot’) and yet is ultimately more powerful (S3XY!) since it carries with it the hope that we can not only avert disaster, death and destruction, but can build a clean, abundant and infinitely expandable energy supply that could be used to build the first tentative steps toward a utopian dream.


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Offshore wind farms could help capture carbon from air and store it long-term – using energy that would otherwise go to waste

Off the Massachusetts and New York coasts, developers are preparing to build the United States’ first federally approved utility-scale offshore wind farms – 74 turbines in all that could power 470,000 homes. More than a dozen other offshore wind projects are awaiting approval along the Eastern Seaboard.

By 2030, the Biden administration’s goal is to have 30 gigawatts of offshore wind energy flowing, enough to power more than 10 million homes.

Replacing fossil fuel-based energy with clean energy like wind power is essential to holding off the worsening effects of climate change. But that transition isn’t happening fast enough to stop global warming. Human activities have pumped so much carbon dioxide into the atmosphere that we will also have to remove carbon dioxide from the air and lock it away permanently.

Offshore wind farms are uniquely positioned to do both – and save money.

Most renewable energy lease areas off the Atlantic Coast are near the Mid-Atlantic states and Massachusetts. About 480,000 acres of the New York Bight is scheduled to be auctioned for wind farms in February 2022. BOEM

As a marine geophysicist, I have been exploring the potential for pairing wind turbines with technology that captures carbon dioxide directly from the air and stores it in natural reservoirs under the ocean. Built together, these technologies could reduce the energy costs of carbon capture and minimize the need for onshore pipelines, reducing impacts on the environment.

Capturing CO2 from the air

Several research groups and tech startups are testing direct air capture devices that can pull carbon dioxide directly from the atmosphere. The technology works, but the early projects so far are expensive and energy intensive.

The systems use filters or liquid solutions that capture CO2 from air blown across them. Once the filters are full, electricity and heat are needed to release the carbon dioxide and restart the capture cycle.

For the process to achieve net negative emissions, the energy source must be carbon-free.

The world’s largest active direct air capture plant operating today does this by using waste heat and renewable energy. The plant, in Iceland, then pumps its captured carbon dioxide into the underlying basalt rock, where the CO2 reacts with the basalt and calcifies, turning to solid mineral.

A similar process could be created with offshore wind turbines.

If direct air capture systems were built alongside offshore wind turbines, they would have an immediate source of clean energy from excess wind power and could pipe captured carbon dioxide directly to storage beneath the sea floor below, reducing the need for extensive pipeline systems.

Researchers are currently studying how these systems function under marine conditions. Direct air capture is only beginning to be deployed on land, and the technology likely would have to be modified for the harsh ocean environment. But planning should start now so wind power projects are positioned to take advantage of carbon storage sites and designed so the platforms, sub-sea infrastructure and cabled networks can be shared.

Using excess wind power when it isn’t needed

By nature, wind energy is intermittent. Demand for energy also varies. When the wind can produce more power than is needed, production is curtailed and electricity that could be used is lost.

That unused power could instead be used to remove carbon from the air and lock it away.

For example, New York State’s goal is to have 9 gigawatts of offshore wind power by 2035. Those 9 gigawatts would be expected to deliver 27.5 terawatt-hours of electricity per year.

Based on historical wind curtailment rates in the U.S., a surplus of 825 megawatt-hours of electrical energy per year may be expected as offshore wind farms expand to meet this goal. Assuming direct air capture’s efficiency continues to improve and reaches commercial targets, this surplus energy could be used to capture and store upwards of 0.5 million tons of CO2 per year.

That’s if the system only used surplus energy that would have gone to waste. If it used more wind power, its carbon capture and storage potential would increase.

Several Mid-Atlantic areas being leased for offshore wind farms also have potential for carbon storage beneath the seafloor. The capacity is measured in millions of metric tons of CO2 per square kilometer. The U.S. produces about 4.5 billion metric tons of CO2 from energy per year. U.S. Department of Energy and Battelle

The Intergovernmental Panel on Climate Change has projected that 100 to 1,000 gigatons of carbon dioxide will have to be removed from the atmosphere over the century to keep global warming under 1.5 degrees Celsius (2.7 Fahrenheit) compared to pre-industrial levels.

Researchers have estimated that sub-seafloor geological formations adjacent to the offshore wind developments planned on the U.S. East Coast have the capacity to store more than 500 gigatons of CO2. Basalt rocks are likely to exist in a string of buried basins across this area too, adding even more storage capacity and enabling CO2 to react with the basalt and solidify over time, though geotechnical surveys have not yet tested these deposits.

Planning both at once saves time and cost

New wind farms built with direct air capture could deliver renewable power to the grid and provide surplus power for carbon capture and storage, optimizing this massive investment for a direct climate benefit.

But it will require planning that starts well in advance of construction. Launching the marine geophysical surveys, environmental monitoring requirements and approval processes for both wind power and storage together can save time, avoid conflicts and improve environmental stewardship.

Originally published on The Conversation by David Goldberg, Lamont Research Professor, Columbia University and republished under a Creative Commons license. Read the original article.

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Climate Movement Hails ‘Mind-Blowing’ $40 Trillion in Fossil Fuel Divestment Pledges

Above: Photo Collage / Lynxotic

“Institutions around the world must step up now and commit to joining the divest-invest movement before it is too late—for them, for the economy, and for the world.”

Over the past decade, nearly 1,500 investors and institutions controlling almost $40 trillion in assets have committed to divesting from fossil fuels—a remarkable achievement that climate campaigners applauded Tuesday, while warning that further commitments and action remain crucial.

“Divestment has helped rub much of the shine off what was once the planet’s dominant industry. If money talks, $40 trillion makes a lot of noise.”

“Amidst a depressing era in the race against climate change—with killer fires and titanic storms, political stalemate, and corporate greenwashing—the fossil fuel divestment movement is a source for tremendous optimism,” states a new report—entitled Invest-Divest 2021: A Decade of Progress Toward a Just Climate Future—published Tuesday.

“Ten years in, the divestment movement has grown to become a major global influence on energy policy,” the publication continues. “There are now 1,485 institutions publicly committed to at least some form of fossil fuel divestment, representing an enormous $39.2 trillion of assets under management. That’s as if the two biggest economies in the world, the United States and China, combined, chose to divest from fossil fuels.”

The paper—a joint effort between the Institute for Energy Economics and Financial Analysis, Stand.earth, C40, and the Wallace Global Fund—comes on the eve of the United Nations Climate Conference in Glasgow, and notes that the divestment movement “has grown so large that it is now helping hold fossil fuel companies accountable for the true cost of their unregulated carbon pollution.”

The report continues:

Since the movement’s first summary report in 2014, the amount of total assets publicly committed to divestment has grown by over 75,000%. The number of institutional commitments to divestment has grown by 720% in that time, including a 49% increase in just the three years since the movement’s most recent report. The true amount of money being pulled out from fossil fuels is almost certainly larger since not all divestment commitments are made public.

The movement has now expanded far beyond its origins as a student-driven effort on college campuses. Divestment campaigners now target cities, states, foundations, banks, investment firms, and any player who participates in the global investment pool.

“Major new divestment commitments from iconic institutions have arrived in a rush over just a few months in late 2021,” the report notes, “including Harvard University, Dutch and Canadian pension fund giants PME and CDPQ, French public bank La Banque Postale, the U.S. city of Baltimore, and the Ford and MacArthur Foundations.”

Underscoring the paper’s assertion, ABP, Europe’s largest pension fund announced Tuesday that it would stop investing in fossil fuel producers.

“Divestment remains a critical strategy for the climate movement,” the publication states. “It must be combined with an accelerated push for investment in a just transition to a clean, renewable energy future if the world is to avoid a future of worsening human injustice and irreversible ecological damage. Financial arguments against divest-invest no longer hold water.”

Bill McKibben, co-founder of the climate action group 350.org, wrote in a Tuesday New York Times op-ed that “divestment has helped rub much of the shine off what was once the planet’s dominant industry. If money talks, $40 trillion makes a lot of noise.”

“This movement will keep growing, and keep depriving Big Oil of both its social license and its access to easy capital,” McKibben said in a separate statement introducing the new report.

The report’s authors contend that institutional investors must agree to three principles “if they want to be on the right side of history and humanity”:

  • Immediately and publicly commit to fully divesting from and stopping all financing of coal, oil, and gas companies and assets;
  • Immediately invest at least 5% of their assets in climate solutions, doubling to 10% by 2030—including investments in renewable energy systems, universal energy access, and a just transition for communities and workers—while holding companies accountable to respecting Indigenous and other human rights and environmental standards; and
  • Adopting net-zero plans that both immediately cut investments in fossil fuels and ensure that all other assets in their portfolio develop transition plans that reduce absolute emissions by 50% before 2030.

“Institutional investors everywhere are beginning to come to terms with the danger that fossil fuels pose to their investment portfolios, their communities, and their constituencies,” the report states. “This realization is important but it is not enough. Institutions around the world must step up now and commit to joining the divest-invest movement before it is too late—for them, for the economy, and for the world.”

“Societies, economies, and the climate are all changing,” the paper concludes. “The financial world will have to change with them.” 

Rev. Lennox Yearwood Jr., president and CEO of Hip Hop Caucus, said in a statement that “the climate crisis is here, and so are climate solutions. We know communities of color are disproportionately impacted by the climate crisis here in the U.S. and across the world. In order to create a just future, we must divest from fossil fuels and invest in communities on the frontlines of the climate crisis.”

“It is not enough to divest from only some fossil fuels or with only some of your portfolio—all investors must immediately divest all fossil fuels from all of their portfolio, while investing in climate solutions.”

Yearwood added that “over 10 years the divest-invest movement has become one of the most powerful global forces in a just transition to a clean energy future.”

Ellen Dorsey, executive director of the Wallace Global Fund, said that “the activist-driven divestment movement has yielded unprecedented and historic results in moving tens of trillions of dollars out of the industry driving the climate crises and exposing its failing business model.”

“But investors need to do more,” she argued. “It is not enough to divest from only some fossil fuels or with only some of your portfolio—all investors must immediately divest all fossil fuels from all of their portfolio, while investing in climate solutions with at least 5% of their portfolios, scaling to 10% rapidly.”

“Mission investors have a unique role to play to ensure the energy transition is a just one and that all people have access to safe, clean and affordable energy by 2030,” Dorsey added. “To do anything less does not address the scale or pace of this climate crisis.”

Originally published on Common Dreams by BRETT WILKINS and republished under a Creative Commons License (CC BY-NC-ND 3.0)

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